VENTILATION REQUIREMENTS IN NONDOMESTIC BUILDINGS AND ENERGY EFFICIENCY

This paper focuses on the importance of the level of ventilation requi rements on the energy demand of non-domestic buildings. At present, we observe a tremendous difference in the ventilation requirements in va rious countries as well as at the European level. Variations by a fact or of IO of the ventilation rate requirement can be found in the propo sal for European standard CEN (European Committee for Standardisation) prENV 1752 depending on the 'cleanness' of the building. The present paper develops these problems and makes a comparison with the situatio n in other areas like thermal comfort and lighting requirements. Resul ts of a practical case study are included. (C) Published by Elsevier S cience S.A. All rights reserved.